Unity 4.2(1) and CME 4.1(0) Error - CME ports reregister every 60 seconds

Question

Hello,
I have an integration between Unity 4.2(1) and CME 4.1(0) which, until Friday last week was working fine.
I got a complaint that users couldn't get theri voicemail and have found that the ports on CME unregister and register every 60 seconds (see below)
Has anyone seen this before and knows a solution.
I've checked that the TSP v8.2(1) is supported for both and I've completely removed the config from CME and redone, but no change.
Any Ideas ?
Thanks
Chris
MA-CAS-2851-01#
Apr 12 14:31:09.703: %IPPHONE-6-UNREGISTER_ABNORMAL: ephone-90:CAS-VI1 IP:10.15.28.111 Socket:14 DeviceType:Phone has unregistered abnormally.
Apr 12 14:31:09.707: %IPPHONE-6-REGISTER_NEW: ephone-90:CAS-VI1 IP:10.15.28.111 Socket:7 DeviceType:App has registered.
MA-CAS-2851-01#
Apr 12 14:31:29.931: %IPPHONE-6-UNREGISTER_ABNORMAL: ephone-91:CAS-VI2 IP:10.15.28.111 Socket:22 DeviceType:Phone has unregistered abnormally.
Apr 12 14:31:29.931: %IPPHONE-6-REGISTER_NEW: ephone-91:CAS-VI2 IP:10.15.28.111 Socket:14 DeviceType:App has registered.
MA-CAS-2851-01#

Answer 1

Hi,
I have already booted the server, had no choice as Unity shut down completely when I made a change in UTIM !
The only events I see are in the App log of EventViewer and they're merely telling me via a TSP error that a port has unregistered.
The Unity server has multiple integrations, ports : 24 to CM4, 6 to CM7 and 2 to CME. (32 ports in total)
Only the CME has any issues and it was working perfectly well for the last 3 months !
Any thoughts?
Chris